CVE-2025-8475
📋 TL;DR
A stack-based buffer overflow vulnerability in the AVRCP Bluetooth protocol implementation of Alpine iLX-507 devices allows network-adjacent attackers to execute arbitrary code as root when the device connects to a malicious Bluetooth source. This affects Alpine iLX-507 car infotainment systems with vulnerable firmware versions. User interaction is required as the target must initiate or accept a Bluetooth connection.
💻 Affected Systems
- Alpine iLX-507
📦 What is this software?
Ilx 507 Firmware by Alpsalpine
⚠️ Risk & Real-World Impact
Worst Case
Full root-level compromise of the infotainment system allowing complete control over the device, potential access to connected vehicle systems, and persistence through firmware modification.
Likely Case
Remote code execution leading to data theft, surveillance capabilities through connected cameras/microphones, or disruption of infotainment functions.
If Mitigated
Limited impact if Bluetooth is disabled or strict pairing controls prevent connections to untrusted devices.
🎯 Exploit Status
Exploitation requires user interaction (connecting to malicious Bluetooth device) and proximity. The vulnerability was discovered by ZDI (ZDI-CAN-26321).
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in available information
Vendor Advisory: https://www.zerodayinitiative.com/advisories/ZDI-25-764/
Restart Required: Yes
Instructions:
1. Check Alpine's official security advisories for firmware updates. 2. Download official firmware from Alpine's support portal. 3. Follow Alpine's firmware update procedures for iLX-507 devices.
🔧 Temporary Workarounds
Disable Bluetooth AVRCP
allDisable AVRCP profile in Bluetooth settings to prevent exploitation through this protocol
Navigate to Settings > Bluetooth > Advanced Settings > Disable AVRCP
Disable Bluetooth Entirely
allTurn off Bluetooth functionality to eliminate the attack vector completely
Navigate to Settings > Bluetooth > Turn Off
🧯 If You Can't Patch
- Disable Bluetooth or restrict to trusted devices only
- Implement physical security controls to prevent unauthorized Bluetooth devices in vehicle proximity
🔍 How to Verify
Check if Vulnerable:
Check firmware version in Settings > System > About and compare against Alpine's security advisoriesCheck Version:
Navigate to Settings > System > About on the iLX-507 interfaceVerify Fix Applied:
Verify firmware version has been updated to a version not listed in vulnerability advisories📡 Detection & Monitoring
Log Indicators:
- Unusual Bluetooth connection attempts
- AVRCP protocol errors or crashes
- System instability after Bluetooth connections
Network Indicators:
- Suspicious Bluetooth MAC addresses attempting connections
- Unusual AVRCP traffic patterns
SIEM Query:
Not applicable - embedded automotive system without standard SIEM integration